Prepare Yumibini with 3/4 cup water according to package directions and set aside to cool.
If using chard or kale, cut out the stems and chop or tear the leaves.
Rinse chopped greens. Boil a pot of water. Add greens and cook only until wilted and bright green (about 30 seconds). Drain and cool immediately with cold water.
Arrange cooked greens (or fresh salad greens) on two small plates.
Cut ribs of greens, onions, carrots, bell pepper, celery or other colorful vegetable into shapes for decorating. Don't worry, there are no rules. Have fun!
Fill a small heart shaped cake pan or cookie cutter with half of the Yumbini. Pack it down tightly. Then unmold onto one plate, and repeat for the other.
Have fun decorating! Ribs of rainbow chard are colorful, as are carrots. White onions and bell peppers give contrast. Try adding edible flowers such as rosemary, thyme, or nasturtiums.
Serve at room temperature or warm slightly in the microwave. Add a light viniagrette (2 parts vinegar to 1 part oil), yogurt or mayonnaise if desired.